Abstract
Succinate production by a respiratory-deficient yeast was inibited by substances known to depolarize the plasma membrane. These substances include high concentrations of the permeable cation potassium, the ATPase inhibitor diethylstilbestrol, the polyene antibiotic amphotericin B, and the uncouplers carbonyl cyanidem-chlorophenylhydrazone and dinitrophenol. Results suggest that succinate effux from yeast cells is driven by membrane energization in the form of an electrical potential. As sucinate is one of the major by-products of alcoholic fermentation, deenergization of yeast plasma membrane may be a useful approach to increasing the yield of ethanol in industrial fermentations.
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Duro, A.F., Serrano, R. Inhibition of succinate production during yeast fermentation by deenergization of the plasma membrane. Current Microbiology 6, 111–113 (1981). https://doi.org/10.1007/BF01569014
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DOI: https://doi.org/10.1007/BF01569014